The 28-year-old joins the club from Heerenveen , where he made 70 Eredivisie appearances during a two-year spell for the Dutch outfit.

Mulder moves to the Liberty Stadium on a three-year deal which will keep him in South Wales until 2020.

He rejected a new deal with Heerenveen and has now put pen to paper on a contract with Swansea to become the club’s first signing of the summer.

The former Feyenoord shot-stopper, who will compete with Lukasz Fabianski and Kristoffer Nordfeldt for the number one jersey, will join up with his new teammates when they report back for pre-season training on Monday.